How to charge a battery. An average car battery has a capacity of around 48 amp hours which means that, fully charged, it delivers 1 amp for 48 hours, 2 amps for 24 hours, 8 amps for 6 hours and so on.
This occurs when one of the soft, gel-filled discs between the vertebrae of the spine bulges or ruptures, compressing and/or irritating the sciatic nerve. Another common cause of sciatica is muscle spasm that compresses the sciatic nerve as it travels through the muscles.
Most often, the spasms are caused by muscle strain from physical overexertion, muscle tension from stress or in reaction to pain at other locations, or physical overexertion from heavy lifting or strenuous exercise. For more information see neck pain causes.Muscles in the neck develop spasms that involve muscle contractions. This can result from sudden movements or twisting of the neck which puts compression on the muscle. This can cause excess stretching of the muscles which may tighten leading to pain.ost often, the spasms are caused by muscle strain from physical overexertion, muscle tension from stress or in reaction to pain at other locations, or physical overexertion from heavy lifting or strenuous exercise. For more information see neck pain causes.